Major Defect of Carbohydrate-Deficient-Glycoprotein Syndrome is Not Found in the Synthesis of Dolichyl Phosphate or N-Acetylglucosaminyl-Pyrophosphoryl-Dolichol

Autor: Etsuko Yasugi, Mieko Oshima, Taeko Dohi, M. Nakasuji
Rok vydání: 1994
Předmět:
Zdroj: Biochemical and Biophysical Research Communications. 200:816-820
ISSN: 0006-291X
DOI: 10.1006/bbrc.1994.1524
Popis: The contents of dolichyl phosphate and UDP-N-acetylglucosamine:dolichyl phosphate N-acetylglucosamine 1-phosphate transferase (GlcNAc-1-P transferase) activity in fibroblasts from patients with carbohydrate-deficient-glycoprotein (CDG) syndrome were analyzed. The amount of dolichyl phosphate and GlcNAc-1-P transferase activity in CDG syndrome fibroblasts were similar to those in normal fibroblasts, suggesting that CDG syndrome may not be due to a deficiency of a biosynthetic enzyme for dolichol-oligosaccharide intermediates, but to a metabolic error in assembly of asparagine-linked oligosaccharide.
Databáze: OpenAIRE